Package-sealing device.



PATBNTED SEPT. 4, 1906.

0. P. CHAPMAN. v PAOKAGESBALING DEVICE.

APPLICATION FILED AUG-19, 1905.

2 SHEETS-SHEET l.

WITNESSES. V 91. e1

N0- 829,948. PATENTED SEPT. 4, 1906.

G. F. CHAPMAN.

.PAOKAGB SEALING DEVICE. AgrLIoAnon FILED AUG.19, 1905.

Fig. 6

, Fig.7 g i LL L' Fl .4 WIT/V 8858.

INVENTOI? Arron/m with the near guide-rail removed; Fig. 4 is asectional end view of a pocket. Fig. 5 is a sectional side view of apocket. Fig. 6 shows and down about in line with the sides.

UNITED I STATES PATENT OFFICE.

PAGKAGEI-SEALINGQDEVICE.

Specification of Letters Patent.

- Patented Sept. 4, 1906.

Application filed August 19,1905. Serial No- 274,938.

To all whom it may concern:

Be it known that I, CHARLES F. CHAPMAN, a citizen of the United States,residing at Lowell, in the county of Middlesex and State ofMassachusetts, have invented certain new and useful Improvements inPackage-Sealing Devices, of which the following is a specifica tion.

My invention has reference to machines for sealing cartons either emptyor filled; and to seal the bottom when theit is adapted carton is emptyand to seal the top when the carton is filled without readjustment. Itis also adapted by a slight change in the pocket to seal cartons ofdiflerent sizes.

In the accompanying drawings, Figure 1 is a diagrammatic side view of amachine with my improvements. Fig. 2 is a plan view of my carrier withthe guide-rails in partial section. Fig. 3 is a side view of -the samethe outline of a pocket with the position of a carton in position forsealing the bottom. Fig. 7 shows the same with the bottom of the cartonclosed and ready for the top to be sealed: I

Ordinarily the bottom-of the empty carton is sealed on one machine andthe top of the filled carton is sealed on another machine. By the use ofmy pockets both operations can be performed on one machine bypassing thecartons throu h it twice.

In this class of machines the cartons are usually fed onto an endlessbelt or revolving table, and as the pass along by successive mechanismsthe aps are smeared with lue and folded over onto each other; ow when atall package is carried along by a conveyer whichholds it at the bottomonly the top which is being sealed. as a rule is not very stead andifpackagesor cartons of different heig ts are used the whole folding andgluing mechanism must be readjusted. j

;The unfolded carton has about the shape shown in Fig. 6-thatis, theflaps stand up evident that when the carton stands upon theunfoldedflaps it brings the top much higher than when it stands upon thefolded flaps.

carrier consists of the endless chains A and carried by double s rocketsC and D,

together with plates E chains,

mit a loose fit of the packages, an

"readily'receive the fla s.

It s

plow K. Its sides are also carried by the plates. chains A B and arecarried at each end single link, as 8, Fig. 3, so :that they can becarried around the s rockets G and D. These lates are provi ed .on eachside with two ro lers 9 9 1O 10, which are arrangedto travel in and beuided by the grooves 11 11 in guide-rails G fixed to the frame of themachine. In the center of plates-E E are oblong orifices 12 12, on eachside of which is one or more screw-holes for screws 14 14.

The packages or cartons instead of resting on plates E E are carried inthe pockets -F F, wlnch are preferably made of sheet metal and must beof a suitable size and hei ht to receive them. These pockets F aredropped through orifices 1'2 12in plates E E and rest on flanges 13 13,which overlap on plates E E and are secured thereto by screws 14 14, asshown. These ockets can be readily removed and others 0 a different sizesubstituted by removingscrews 14 14.

The bottom of each pocket F is upset, as

shown in 15, Figs. 4 and 5, to a dept equal to the height of the highestflaps of the top of the carton to and pockets F F F, carriedby thePlates E E are attached on top of be sealed. Bythis upset, as

shownin Figs-6 and 7', the upper rim of the carton is brought on thesame horizontal plane, whether the carton rests upon the ends of theflaps, as shown in Fi 6, or upon the sealed bottom, as

shownin g. 7.

, Pockets F F must be of suchhei ht with reference to the packages to besea ed that the distance fromthe top of upset 1'5to theline on which thesealing and gluing devices H K M N N operate shall be just the height ofthe closed package. The depth of upset 15 must be just e ual to theheight of the two highest flaps o the top of the'package. Pockets F Fshould be large enou h to perupset 15 should taper, as shown in Figs. 4and 5, to

The empty carton bottom up, is fed in at the right of the machine, Fig.1, by dropping it into a pocket. which pass down beside upset 15.- rI-tis cerried along, and its back flap is depressed by finger H and itsfront flap is depressed by y plow K, and in this position it passesunontop of the other bythe reciprocating roll- Thence the sides springup It rests upon its flaps,

pressed out flat ers N N, and after passing s rockets O the carton fallsout by gravity. t is then filled and right side up'is again fed in atthe right of the machine, when its top is sealed in the same manner.

Different-sized pockets adapted for dif ferent-sized packages can bereadily substi:

tuted and no readjustment of parts is neces i y supportingthepackage-holder at the top and usingtwo supporting-chains I'bring thepart of the packa e to be operated u on always at the same evel with thesea ing devices, and by using the upset my device does duty fortwo-machines.

The upper. rim of the carton should rise a short distanceesa a half orthree-quarters of-an inch above ates E E and should be exactly on theFane of sealing-and gluing devices H K M N, so that if the attendantskips a pocket in feedin these plates will not come in contact with t eglueroll, but will pass along under it."

On devices where a form is used inside the empty carton when theattendant skips a form the form passes along and its top is covered withglue from the glue-roll, in which case it must be washed,'or else somekind or depressing device must be used to keep the form away from theglue. My device avoids this difiiculty.

What I claim as my invention, and desire to cover by Letters Patent, is-

1'. In a package-sealing machine, parallel endless chains, a pluralityof pockets carried thereby and depending between them, combined' withfla closing, and flap-gluing devices as d'escri ed.

2. In a package-sealing machine, parallel endless chains, a plurality ofplates connecting-and carried by the chains, and pockets carried attheir tops by the plates, combined with flap-closing, and flap-gluingdevices as described.

3. In a carton-sealing machine, a pocket with'upset bottom adapted tohold a full or empty carton.

4. In a package-sealing machine, parallel endless chains, a pluralityof'pockets with in presence of two witnesses.

CHARLES E. CHAPMAN. Witnesses:

EDWARD W. CLARK, W. E. POTTER, Jr.

